Home / 11,295.20-16,920.12-6,357.44

Finding the Fourth Proportional to 11,295.20, 16,920.12 and 6,357.44

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Solution

The fourth proportional to 11,295.20, 16,920.12 and 6,357.44 is: 9,523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,295.20 : 16,920.12 = 6,357.44 : x
  2. Step 2: Convert to fraction form
    11,295.20/16,920.12 = 6,357.44/x
  3. Step 3: Cross multiply
    11,295.20x = 16,920.12 × 6,357.44
  4. Step 4: Simplify right side
    11,295.20x = 107,568,647.69
  5. Step 5: Solve for x
    x = 107,568,647.69/11,295.20
  6. Step 6: Final answer
    x = 9,523.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.